<script type="text/javascript">
  // Set this to the URL you used to fetch recommendations, whether you
  // fetched them on the client or the server.
  var request_url = '%(json_url)s';

  // This function is used track click-throughs by fetching a web
  // beacon.n
  function trackClickThrough(elem) {
  var img = new Image();
  img.src = '%(beacon_url)s' +
  '?request_url=' + escape(request_url) +
  '&click_through_url=' + escape(elem.href);
  return true;
  }
</script>

<p>
  <!--
      Imagine this is one of the recommendations that was returned.
      Just add an onclick handler that calls trackClickThrough.
  -->
  <a href="http://www.google.com"
     onclick="return trackClickThrough(this);">Click me!</a>
</p>
